| 摘要 |
A safety catheter (1) comprises a catheter body (10) having an axial channel (11) communicating with a sheath or cannula (20) for administration of fluids, a guide needle (3) insertable, though the channel (11) of the catheter body, into the sheath (20) to guide it during insertion into a patient's body (10), and a guide needle body (30), supporting the guide needle (3), insertable into the catheter body (10) and provided with at least one seat (35) for coupling with medical instruments, the body (30) of the guide needle being mounted slidably in said catheter body (10) to be able to pass from a forward working position, wherein the guide needle (3) protrudes forward from the catheter body, to a retracted safety position, wherein the guide needle (3) is protected inside the catheter body (10), there being provided locking means (40) disposed in the body (30) of the guide needle, cooperating with complementary locking or stop means (14, 15, 16) disposed in the catheter body (10), to lock the guide needle body (30) respectively in the forward working position and in the retracted safety position. <IMAGE> |
